Rolling mill adjusting apparatus



April 17, 1951 G. cozzo 2,549,291

ROLLING MILL ADJUSTING APPARATUS Filed Feb. 14, 1946 INVENToR. 6MM-PPE Cozzo A TTOPNE YS Patented Apr. 17, 1951 UNITED PATENT OFFICE aoLLINVor MILL ADJUSTING APPARATSY GiuseppefCoz'zoQNefw York, j N. Y., assignor to Hydropress; Incorporated, New York, N. Y., a corporationfof 'Delaware n Application February 14, 1946, Serial No. 647,529

ticularly to a means for accurately adjusting the rolls therein so as to controlclosely the thick-y ness of the material or Kfoil being rolled. 3 A j,

Aconventional rolling mill has at least two rolls with end bearings supported in suitableend frames. A screw down or equivalentadjustable abutment member is located in each, end frame to limit the movement of the two rolls away from each other andthus control` the finished thickness of material beingrolled.` Various com? binations of rolls maylbe employed suchas ing rolls for the rolls'actually contacting .the material being rolled.. l f l The screw down member in the pasthas been adjusted usually DST-.engaging @f enh'fhrewith and directly exerting force thereon ory by tapping the wrench with a hammer." As aresultit`has been difcult to .A make adjustments accurately and especially when only "smallchanges arerequired. This particularly is true when the screw down member hashad considerable axialload exerted thereon. l f *y l In accordance with the presentfinvention'ya block is associated eccentrically,relative'to the adjusting screw andhammers are arranged for exerting blows selectively in either direction on the block so as to cause a small angular movement in the desired direction of'thescrew with each blow of thehammer.y The hammers can be supported on a heavy plate concntrically mounted relative vto the adjusting.screw and means provided so that the plate and hammers can center themselves relative to the block after each small movement of the block and screw. A series of relatively rapid substantially uniform blows are given to the block, the length'lof `time of said series governing the amount th'e adjust-f ing means is moved or rotated.

The invention also, may be used for 'other' purposes where it is desired to produce a movement composed of a series of small movements. Various arrangements of the hammers, types of vibrators, and details 'of construction [may be used, the following descriptionand drawings merely being exemplary of one form of the invention. I In the drawings: 'gy I v Fig. l'is a plan view of one form of the apparatus. m

Fig. 2 is a section taken along the line 2-2 of Fig. 1, the screw shank being shown in full. As mentioned previously, rolling mills have at least two rolls between which the material to be shaped is passed.- At the ends of each of these rolls :there is -a bearing arrangement which is normally supported in a suitable type of upright frame, the frame being designed so as to absorb the rather high stresses frequently caused therein as the material is passed through the rolls. The lowerset of bearings .normally is positicned vertically directly by saidframe or support and an adjustable abutment limits upward movement ofthe upper roll away from the lower rollA as materialis passed therebetwen thus governing the nal thickness ofthe material being shaped* In some types ofmills, there are rolls placed outside of the shaping yrolls themselves and the invention will apply thereto as Well as tothe case where only one pair of rolls is used. 'In additionthereto, the abutment for the lower roll can be made adjustable. i

One of themill housings 2l]A is shown diagram Qrnatically with an adjustable screw down member 2Imounted .therein,th'e lower point 22 of said screw being adapted to contact the upper roll bearing, or other adjusting means, of the millin any suitable manner. Arm 3 is made integral or non-rotatably fastened to the shank of adjusting lscrew 2l, arm 3 having a hammer block 4 mounted thereon, said hammer block ybeing spacedly located from the center line of the adjusting screw 2|- and therefore eccentrically mounted relative thereto. Heavy frame or plate 5 is rotatably mounted relative to the adjusting screw and block carrying arm 3 by means Yof rsup'porting'bracket l and pin 8 depending therefrom, said pin 8 being rotatable in aperture v23, said aperture being substantially aligned with the center line of the adjusting screw 2I. Plate [5has Va 'recess I9 in which can be located block 'supporting arm 3, there being `suilicient clearance provided so that'block supporting arm 3 -is'osci'llatab'le in said recess relative to plate 5. Hammersnl IA, I IB are carried by spring leaves 9A, 9B,v respectively, said spring leaves being mountedon bracket 6 carriedby plate 5. V-The hammer may be fastened'to the springs by means vof-screws I2 or in any suitable fashion and bolts lll` ycan be employed to fasten thetwo spring leaves 9A, 9B to bracket 6. Block'carrying arm 3 iscentered in recess I9 by means of yieldable blocks I3A, I3B, said blocks preferably being of rubber althoughA springs or other suitable resilient devices can be used to center the block carrying arm 3 relative to recess I9.

yIn the form shown, the operating means for the hammers is provided by two electric vibrating kmotor stators I4A and I4B and their respective armatures IlA and ITB mounted on spring leaves 9A and 9B. The stators have coils IBA and ISB wound thereon, said coils being connected through suitable control means to a source of alternating current and arranged so that either stator may be energized or so that the stators can be energized in such a manner as to cause rotation of the screw 2| in the desired direction.

When a screw 2I' is to be turned-in one direc-1 tion, coils I 6A may be energized, for example', which will cause a vibration of spring leaf 9A. Hammer I IA will thereby impart a series of rapitiVv blows to hammer block 4 tending to turn'thearm- 3 in a counterclockwise direction (Fig. l). The plate is made suiciently heavy so thatr the inertia thereof relative to thehanr'ner IIA, block 4, and arm 3 will cause plate 5 not to rebound or move in a clockwise direction as the" hammer strikes the block, resilient member I3B being compressed instead. The energy stored inthe re silient member I3B will tend to center plate and recess I9 relative to the arm 3 as the action continues, so that arm 3 and plate 5 will continue a slow rotation until the power is cut off to coils IGA. Similarly, if rotation is desired in a clock`- wise direction, coils ISB can be energized.

Itis apparent that other equivalent types of vibrating eler'nents'` may be used in place of those shownl such as a conventional rotating motor and.` cam (not shown), or some type of conven-v tional mechanical vibr-ator (not shown); Thevi' brator should be one which imparts a blow to the hammer block so as to movev the adjusting screw a small amount with each blow. These and other modications may be made in the form and con struction shown without departing" from the spirit of the invention or scope of the appended claims.

What is claimed:

1. Inv combination; a rotatable adjusting means mounted on a device to be adjusted; blow im.- parting means contactable with said rotatable adjusting means for rotating said adjusting means; a support carrying Said blow imparting means and mounted on said adjusting means', said support being rotatable` relative to said de# vice to follow said adjusting means upon rotation thereof by said blow imparting means, said supselectively operable to impart blow toI said block in either direction as desired, a rotatable carrier supported on said adjusting means carrying said blow imparting hammers in proximity to said block, and hammer actuating mechanism adjav "cent said hammers for vibrating the sameA to hit said block and rotate said adjusting' means, said ear'riieii having" means. maintaining said vibrating means in proximity to said block.

unsl

carried'b'ysaldisprin'igs mounted on said plate,

' l said' Hammers straddling said block; a Vibrator foreach li'an'irner" selectively operable to actuate one` ofsaid hammers, and a resilient connection between vsaid plate and arm, the inertia of said plate' being such that the yarm is moved by a blow of the hammer and the plate follows the arm thereafter.-

5. In combination, a rotatablev screw threaded adjusting means; an arm extending fromn said adjusting niearis;v said arm having a block eccentrially`l located relative to said adjusting means; a heavy platerotat'ably supported on said adjustingmeans a pair of springs-andhammers carried by saidsprings-mounted on said plate, said ham-V mers straddl'ing said block; an alternating cur-v rent vibrator for'l each'A hammer selectively' operable to actuate one ot said hammers, and a resilient connectionl between said plate and arm, the inertiaof said plat-'e being such that the arm is moved by a blow of the hammer and the plate follows* the arm thereafter.

l 6'. In anI adjusting? device-combination, a rotatablead'ju'stingmeanshaving ablow receiving portion, vib'rat'able` mechanical means contactable with said; blow receiving portion of said adjusting means fori-mparti-ng blows thereto and rotating said adjusting means, said mechanical means being held onr a support' movable relative' to said adjusting means, and a control connectedto said vibratable mechanical means controlling the direction and number of blows irrpartedthereby to said;e blowI receiving portion, so'l as' to selectivehr rntate`v said adjusting means.

4'7". In anadjus'tingdevice combination, a rotatyatie"fidiiistiiijgmeansiiaving,ai blow receiving pornon, Waremme-mechanical hammers' contactable withsaidblow receiving portion of said adjusting The Ils fdr irripaitingbldw's thereto, SOas t0`rotate sai y adjusting' means", a" movablek support carrying Said blqvv imparting hammer' n'fira's, Said movable 'Sl-lpprl" rotating with Said adjusting means and movablelativtheeto; so aS to hOld- Said blow imparting Hammers lin close proximity thereto, and Inleasoilnctd: With Said hammers fOr operating the same'; Y U

GIUSEPPE" COZZO.

REFERENCES CITED rAThefoll'c'nw'ing' references are ofV record in the file f this pal'jellt-Iv Y UNITED STATES PATENTS Number Name y Datel 1,629,602 Tytus ..-.i: May` 24, 17927 

